Work

Impact of Urban Neighborhood Morphology on PM2.5 Concentration Distribution at Different Scale Buffers

Year: 2024

Type: article

Abstract: Air pollution is significant global public health concern, with exposure to outdoor air pollution leading to adverse health outcomes. The design of outdoor spaces is closely linked to spatial distribution of PM2.5 concentrations. This study introduces a systematic research framework about the influence of urban neighborhood morphology on PM2.5 concentration distribution, including factors at geographic, architectural, and visual. Spatial distribution data of PM2.5 concentrations were collected through mobile monitoring across three urban neighborhoods, establishing buffer zones from 50m to 3000m at 11 scales. The Land Use Regression was employed to assess impact on PM2.5 distribution at various scales. The results demonstrate: ①The strength effects of influencing factors on PM2.5 concentrations is ranked as follows, land use properties, visual, building density, building height, floor area ratio, road intensity, and land cover. ②Geographic factors such as land cover significantly affect PM2.5 concentrations at scales of 2000m and 3000m. ③Industrial land and park green spaces have the most significant impact at 1000m and 1500m scales. ④The influence of building density increases with scale; floor area ratio has significant impact at 300m, 400m, and 500m scales; building height show significant influence within 50m to 500m range. ⑤Visual are most significant at the urban scale.

Source: Land

DOI: 10.3390/land14010007

Authors: Zhen Wang, Kexin Hu, Zheyu Wang, Bo Yang, Zhiyu Chen

Institutions: Huazhong University of Science and Technology, University of Arizona

Language: English

Topic: Air Quality and Health Impacts

Subfield: Health, Toxicology and Mutagenesis

Field: Environmental Science

Domain: Physical Sciences

SDG: Sustainable cities and communities

Open Access status: gold

Estimated APC paid: $2,955